Entry 12

Hi guys! :) Today's lesson was just a continuation to the chapter on Kinetic Particle Theory.

Kinetic particle theory represent-> kinetic particle model-> explains particles motion & arrangement in states of matter.

Kinetic particle theory->explains:
-diffusion
-inter-conversion of states
- brownian motion

Assumptions...
Explains particle behavior like arrangement, motion and forces of attraction between particles.

NOTE!
1.Kinetic energy-> causes change in temperature.
2. Particles traveling a straight line.

DIFFUSION


It is the movement of substance from higher concentration to a region of lower concentration. The particles move randomly and constantly until it reaches its equilibrium.

BROWNIAN MOTION
Take note....
For example: pollen grain and air molecules in a beaker. It isn't the pollen grain thy is moving. It is the air molecules that are colliding with the pollen grains causing it to vibrate.

Use KPT( kinetic particle theory) to explain what happens to particles
=> when an ice cube melts
=> when water boils

** the more heat energy taken in by the particle the stronger the vibration.

When an ice cube melts....
Water molecules gain energy and vibrate faster about their fixed positions. They stay together due to a strong attraction between the molecules. When solid water molecules gain suffixing energy to overcome the hydrogen bonding (the bond between water molecules) between them in their fixed positions, the water molecules will move slightly apart and can now roll and glide over each other.

** once the way causes the water molecule to reach its threshold, they will bread the bond apart.

When water boils....
The water molecules gain energy, move faster and further apart. When water molecules gain sufficient energy to completely overcome the hydrogen bonding between the molecules, the water molecules move far apart and away from each other.

** At boiling point, the bond will break.

After that we were given some questions to ponder about... That was about it for the lesson as it was only an hour, we also had a pre test for this topic:)

Thank you for reading!!